Issued Patents All Time
Showing 1–10 of 10 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8399148 | Varnish for a solid polymer fuel cell | Igor Rozhanskii, Yoshitaka Yamakawa, Nagayuki Kanaoka, Kaoru Fukuda, Ryoichiro Takahashi +1 more | 2013-03-19 |
| 8043762 | Polyphenylene-containing electrode paste | Igor Rozhanskii, Yoshitaka Yamakawa, Nagayuki Kanaoka, Kaoru Fukuda, Ryoichiro Takahashi +1 more | 2011-10-25 |
| 7906608 | Nitrogenated aromatic compound, process for production of the same, polymer, and proton conductive membrane | Igor Rozhanskii, Yoshitaka Yamakawa | 2011-03-15 |
| 7893303 | Polyarylene, process for producing the same, solid polyelectrolyte, and proton-conductive film | Yoshitaka Yamakawa | 2011-02-22 |
| 7115699 | Sulfonated polymer having nitrile-containing hydrophobic block and solid polymer electrolyte | Yoshitaka Yamakawa, Toshiaki Kadota | 2006-10-03 |
| 7060748 | Catalyst paste composition for electrode | Keiichi Bessho | 2006-06-13 |
| 6825310 | Halogenated aromatic compound, polymer thereof, and proton-conductive membrane comprising same | Kohei Goto, Masayuki Takahashi, Yoshitaka Yamakawa | 2004-11-30 |
| 6794480 | Monomer containing electron-withdrawing group and electron-donative group, and copolymer and proton-conductive membrane comprising same | Kohei Goto, Masayuki Takahashi, Yoshitaka Yamakawa | 2004-09-21 |
| 6685984 | Method for the production of multilayers | Kohei Goto, Yoichi Asano, Ryoichiro Takahashi, Osamu Kakutani, Gen Okiyama | 2004-02-03 |
| 6440856 | Cleaning agent for semiconductor parts and method for cleaning semiconductor parts | Keiichi Bessho, Katsuhiro Ishikawa, Hisao Ono | 2002-08-27 |